Please enable JavaScript.
Coggle requires JavaScript to display documents.
Chapter 5: Chemical bonding - Coggle Diagram
Chapter 5: Chemical bonding
Metals and non-metals
Ionic
transfer of electrons
--- Giant Ionic crystal lattice
strong electrostatic forces of attraction between oppositely charged ions. HIGH M.P and B.P
In solid state, ions are held in a fixed position ( cannot conduct electricity)
In liquid/aqueous/molten state, the ions are mobile (can conduct electricity)
non-metal and non-metal
Covalent bonds
Giant covalent structure
Diamond
each carbon atom is bonded to 4 other carbon atom in a tetrahedral arrangement. ( high B.P and M.P. and hard)
Graphite
each carbon atom is bonded to 3 other carbon atoms by strong covalent bond(high B.P. and M.P.) in a hexagonal arrangement
Weak intermolecular forces of attraction between the layers(slippery)
Each carbon atom has 1 valence electron that is not used in bonding. (delocalised electrons help to conduct electricity)
simple molecular structure
weak intermolecular forces of attraction(Low M.P. and B.P.)
No mobile electrons or ions( cannot conduct electricity)
metal and metal
metal
Giant metallic structure
strong metallic bond between the positive metal ion and "sea of delocalised electrons" (can conduct electricity)
alloy
mixture of metals and other metals